Superiorly, the prostate base is contiguous with the bladder outlet. Inferiorly, the prostate's apex heads in the direction of the urogenital diaphragm, which is pointed anterio-inferiorly. The prostate can be divided into four anatomic spaces: peripheral, central, transitional, and anterior fibromuscular stroma.
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Its position is marked by the location of the right coronary artery and small cardiac vein. The right coronary sulcus separates the right atrium and its auricle from the right ventricle inferiorly. The right coronary sulcus then passes inferiorly onto the diaphragmatic surface of the heart and traverses to the left.
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As it arises from the right ventricle, the impulse spreads inferiorly from beneath the pulmonary valve, and there right axis deviation.
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Nor am I the slightest bit interested in using the model of an out-dated, infirmly and inferiorly working European, Japanese and general world scenario.
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The Golden S sign can be seen on plain radiographs as well as on computed tomography (CT) scans of the chest. The sign is seen in the right lung as a distorted minor fissure, whose lateral aspect is concave inferiorly and whose medial aspect is convex inferiorly. This produces a "reverse S" appearance, responsible for the sign being occasionally called the reverse S sign of Golden.
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Tail 1.6 times the length of head and body. Dark olive-brown above, greenish-white inferiorly. From snout to vent 2-5 inches ; tail 4.5.Boulenger, G. A. 1890.
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The body whorl shows an impressed revolving line above and four raised revolving lines inferiorly. The upper sinus of the outer lip is deep and rounded, the lower obsolete.
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The clavicle articulates with the manubrium to form the anterior border of the thoracic inlet. Superior to the thoracic inlet is the root of the neck, and the superior mediastinum is inferiorly related. The brachial plexus is a superolateral relation of the thoracic inlet. The brachial plexus emerges between the anterior and middle scalene muscles, superior to the first rib, and passes obliquely and inferiorly, underneath the clavicle, into the shoulder and then the arm.
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The piriformis is a very important landmark in the gluteal region. As it travels through the greater sciatic foramen, it effectively divides it into an inferior and superior part. This determines the name of the vessels and nerves in this region – the nerve and vessels that emerge superior to the piriformis are the superior gluteal nerve and superior gluteal vessels. Inferiorly, it is the same, and the sciatic nerve also travels inferiorly to the piriformis.
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The sticky loments that many people find attached to their shoes and pants are arranged in a row of 2-6 superiorly sinuate and inferiorly triangular segments and appear August–October.
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The mid- inguinal point, halfway between the anterior superior iliac spine and the pubic symphysis, is the landmark for the femoral artery. The external iliac arteries pass the inguinal ligament posteriorly and inferiorly.
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The American Red Cross and some other agencies accepting blood donations consider dura mater transplants, along with receipt of pituitary-derived growth hormone, a risk factor due to concerns about Creutzfeldt–Jakob disease.International Red Cross and Red Crescent Movement - redcross.org Cerebellar tonsillar ectopia, or Chiari, is a condition that was previously thought to be congenital but can be induced by trauma, particularly whiplash trauma. Dural strain may be pulling the cerebellum inferiorly, or skull distortions may be pushing the brain inferiorly.
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The anterior layer is continuous inferiorly with the pia mater on the inferior cerebellar peduncles and the closed part of the medulla oblongata. The posterior layer covers the antero-inferior surface of the cerebellum.
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Articular disc and condyle complex slide inferiorly on the articular eminences, allowing maximum depression of the mandible. Maximal Mandibular Opening (T). Condylar heads are said to be at a maximum anterior- inferior position. Maximum Protrusion.
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It extends posteriorly toward the calcarine sulcus. The precuneus is bordered anteriorly by the marginal branch of the cingulate sulcus (margin of cingulate sulcus), posteriorly by the parietooccipital sulcus, and inferiorly by the subparietal sulcus.
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SBO can extend into the petrous apex of the temporal bone or more inferiorly into the opposite side of the skull base. The use of hyperbaric oxygen therapy as an adjunct to antibiotic therapy remains controversial.
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Thoracic splanchnic nerves are splanchnic nerves that arise from the sympathetic trunk in the thorax and travel inferiorly to provide sympathetic innervation to the abdomen. The nerves contain preganglionic sympathetic fibers and general visceral afferent fibers.
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When comparing hominins of the Middle Pleistocene, Neanderthals and Holocene humans, the apex of the cochlea faces more inferiorly in the hominins than the latter two groups. Finally, the cochlea of European middle Pleistocene hominins faces more inferiorly than Neanderthals, modern humans, and Homo erectus. Human beings, along with apes, are the only mammals that do not have high frequency (>32 kHz) hearing. Humans have long cochleae, but the space devoted to each frequency range is quite large (2.5mm per octave), resulting in a comparatively reduced upper frequency limit.
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The hippocampus arises from the medial telencephalon. In lower mammals, the hippocampus is located dorsally. Considerable expansion of the cerebral cortex in higher mammals (e.g. humans) displaces the hippocampus ventrally where it protrudes inferiorly into the lateral ventricles.
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Snout very prominent, rounded. Nostrils located inferiorly (ventrally). Rostral large, more than half as broad as the head; portion of rostral visible from below as long as broad. Nasal semidivided, the cleft proceeding from the first upper labial.
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The supraorbital margin of the frontal bone ends laterally in its zygomatic process, which is strong and prominent, and articulates with the zygomatic bone. The zygomatic process of the frontal bone extends from the frontal bone laterally and inferiorly.
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The uterosacral ligaments keep the body from moving inferiorly and anteriorly. The round ligaments restrict posterior movement of the uterus. The cardinal ligaments also prevent the inferior movement of the uterus. The uterus is a pear-shaped muscular organ.
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The thin shell is ventricose, inflated, generally globular, rarely oblong and encircled with ribs. The spire is short. The outer lip is crenulated and sometimes denticulated throughout its whole length. The oblong aperture is very large and emarginated inferiorly.
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The deep perineal pouch is bordered inferiorly by the perineal membrane, also known as the inferior fascia of the urogenital diaphragm. It is bordered superiorly by the superior fascia of the urogenital diaphragm.Netter, F., Atlas of Human Anatomy.4th Ed. Saunders, Philadelphia, 2006.
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It is found within the aponeurosis of the external oblique, immediately above the pubic crest, 1 centimeter above and superolateral to the pubic tubercle. It has the following boundaries—medial crura by pubic crest, lateral crura by pubic tubercle and inferiorly by inguinal ligament.
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This space is also in the posterior wall of the axilla. It is a triangular space bounded medially by teres minor, laterally by long head of triceps brachii, and inferiorly by teres major. The scapular circumflex artery and scapular circumflex vein pass through this space.
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The opening to the palatovaginal canal in the nasal cavity is located near the lateral margin of the ala of the vomer, at the roots of the pterygoid process. The other opening to the palatovaginal canal is located inferiorly and posteriorly in the pterygopalatine fossa.
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Ramus fractures are said to involve a region inferiorly bounded by an oblique line extending from the lower third molar (wisdom tooth) region to the posteroinferior attachment of the masseter muscle, and which could not be better classified as either condylar or coronoid fractures.
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The function of the pectoralis major is different for its different heads. The clavicular head flexes the humerus, and the sternocostal head adducts the humerus. As a whole the action is to adduct and medially rotate the humerus. It also draws the scapula anteriorly and inferiorly.
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The suture is waved, with an impressed line above it. The body whorl is short, angular on the shoulder. The body whorl shows an impressed revolving line above and four raised revolving lines inferiorly. The upper sinus of outer lip is deep and rounded, lower obselete.
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The umbilical fascia (or umbilicovesical fasciamedilexicon.com > umbilicovesical fascia Citing: Stedman's Medical Dictionary. Copyright 2006) is a thin fascial layer that extends between the medial umbilical ligamentsmondofacto.com > umbilicovesical fascia 05 Mar 2000 from the umbilicus, and extends inferiorly, becoming continuous with the visceral fascia enclosing the urinary bladder.
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The tendon is reflected caudally, laterally, and inferiorly beneath the superior rectus to the lateral part of the bulb of the eye, and is inserted onto the scleral surface, behind the equator of the eyeball, the insertion of the muscle lying between the superior rectus and lateral rectus.
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The columella has one to three folds. The sharp outer lip is entire, inferiorly sub-perforated and often plicate within with three transverse folds. The shell is usually larger than in Turbonilla. The thin operculum is horny, ovate, elongated,with very fine elements and oblique folds and folds oblique.
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In the lower leg the anterior and posterior regions extend down to the malleoli. Behind the malleoli are the lateral and medial retromalleolar regions and behind these is the region of the heel. Finally, the foot is subdivided into a dorsal region superiorly and a plantar region inferiorly.
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The sacral ganglia are paravertebral ganglia of the sympathetic trunk.:39 As the sympathetic trunk heads inferiorly down the sacrum, it turns medially. There are generally four or five sacral ganglia. In addition to gray rami communicantes, the ganglia send off sacral splanchnic nerves to join the inferior hypogastric plexus.
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Some pituitary adenomas can extend inferiorly, growing downward and invading the sphenoid bone and cavernous sinus.Knosp E, Steiner E, Kitz K, et al. Pituitary adenomas with invasion of the cavernous sinus space: a magnetic resonance imaging classification compared with surgical findings. Neurosurgery. 1993 Oct;33(4):610-7; discussion 617-8.
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The tympanic membrane is oriented obliquely in the anteroposterior, mediolateral, and superoinferior planes. Consequently, its superoposterior end lies lateral to its anteroinferior end. Anatomically, it relates superiorly to the middle cranial fossa, posteriorly to the ossicles and facial nerve, inferiorly to the parotid gland, and anteriorly to the temporomandibular joint.
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The length of the shell attains 18 mm. The reddish brown shell shows a white narrow band on the periphery, and, on the body whorl, a second inferior band. It contains 12½ whorls, with obsolete flexuous longitudinal plications, crossed by revolving lines. These are nodulous at the periphery, and less distinctly so inferiorly.
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For larger anterior cheek defects, the posterior-based cervicofacial flap is continued inferiorly along the sternum, then laterally down across the chest, above the nipple and toward the axilla. This flap is supplied by the superficial temporal artery and vessels, the vertebral and occipital arteries and the perforators of the trapezius muscle.
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BFP appears to be a symmetrical polymicrogyria that extends anteriorly from the frontal poles to the posterior precentral gyrus, and inferiorly to the frontal operculum. Patients who had polymicrogyria distribution similar to this also experienced similar symptoms including delayed motor and language developments, spastic hemiparesis or quadriparesis, and forms of mild mental retardation.
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The head of the femur is attached to the shaft by a thin neck region that is often prone to fracture in the elderly, which is mainly due to the degenerative effects of osteoporosis. The acetabulum is oriented inferiorly, laterally and anteriorly, while the femoral neck is directed superiorly, medially, and slightly anteriorly.
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The mental space is a fascial space of the head and neck (also termed fascial spaces or tissue spaces). It is a potential space, bilaterally located in the chin, between the mentalis muscle superiorly and the platysma muscle inferiorly. These spaces may be created by pathology, e.g., the spread of odontogenic infection.
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The simple outer lip simple is inner reflected over the umbilicus. The umbilicus has superiorly a narrow spiral perforation, inferiorly a trough hollowed between the columella and the funicle. Charles Hedley, The Mollusca of Mast Head Reef, Capricorn Group, Queensland. Part II; Proceedings of the Linnean Society of New South Wales v.
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The obturator artery is a branch of the internal iliac artery that passes antero-inferiorly (forwards and downwards) on the lateral wall of the pelvis, to the upper part of the obturator foramen, and, escaping from the pelvic cavity through the obturator canal, it divides into both an anterior and a posterior branch.
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For these reasons, the lips dry out faster and become chapped more easily. The lower lip is formed from the mandibular prominence, a branch of the first pharyngeal arch. The lower lip covers the anterior body of the mandible. It is lowered by the depressor labii inferioris muscle and the orbicularis oris borders it inferiorly.
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The incision is made in the medial aspect of eyebrow above, parallel to hair line. A 4–5 mm diameter hole is drilled into the anterior table of the sinus. The best location of the trephine is the floor of sinus or through brow ridge. If there is possibility of development of osteomyelitis, trephine should be made inferiorly.
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Pronator teres pronates the forearm, turning the hand posteriorly. If the elbow is flexed to a right angle, then pronator teres will turn the hand so that the palm faces inferiorly. It is assisted in this action by pronator quadratus. It also weakly flexes the elbow, or assists in flexion at the elbow when there is strong resistance.
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Infection that begins below the buccinator's attachment point with the maxilla will spread inferiorly into the vestibular space. Rarely, the infection will spread upwards into the maxillary sinus and cause a sinusitis. In the lower jaw (mandible), the primary spaces are the sublingual, submandibular, and submental spaces. The location of the mylohyoid dictates the spread of infection.
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When the jaw is opened widely, it exceeds the maximum range of jaw opening with rotational movement, and a secondary gliding movement occurs. This movement is called translation. Translation occurs within the superior cavity of the joint. During translation, the condylar heads slide anterior and inferiorly down the articular eminence, allowing the jaw to open wider.
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Presents RNFL thickness in colour with thick regions in red and yellow and thin regions in blue and green. For healthy eye, the image will show yellow and red colour in superior and inferior at NFL regions. But, in glaucoma, the image is absence of red and yellow colours. Superiorly and inferiorly more uniform blue appearance.
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Upon the surface of this shell, are seen equal, raised striae. The white aperture is subrotund, narrowed at the upper part and dilated inferiorly. The thin outer lip is crenulated upon the edge, and marked interiorly with very prominent transverse striae . The columella is arcuated and covered by the inner lip, which is obliterated, flattened and corrugated above.
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It is this ability to move superiorly and inferiorly along the chain that results in the mass response to the sympathetic nervous system. A preganglionic fibre may synapse to 15-20 postganglionic fibres. The postganglionic neurons extend across most of the body. Upon exiting the sympathetic chain, the fibres enter a less-myelinated gray ramus communicans.
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Anterior horn shown in red. The anterior horn of the lateral ventricle is also known as the frontal horn as it extends into the frontal lobe. The anterior horn connects to the third ventricle, via the interventricular foramen. This portion of the lateral ventricle impinges on the frontal lobe, passing anteriorly and laterally, with slight inclination inferiorly.
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The serratus anterior is innervated by the long thoracic nerve (Nerve of Bell), a branch of the brachial plexus. The long thoracic nerve travels inferiorly on the surface of the serratus. The nerve is especially vulnerable during certain types of surgery (for example, during lymph node clearance from the axilla (e.g., in case of axillary dissection in a surgery for breast cancer)).
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Paravertebral ganglia are divided into cervical, thoracic, lumbar, and sacral ganglia. Each controls different glands and muscle groups since each muscle and gland receives input from postganglionic neurons that originated from different levels of paravertebral ganglia. The lumbar part of the sympathetic trunk contains four interconnected ganglia. Superiorly, it is continuous with thoracic sympathetic ganglion and inferiorly continuous with sacral sympathetic ganglion.
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The anterior portion of the spinal cord is supplied by the anterior spinal artery. It begins at the foramen magnum where branches of the two vertebral arteries exit, merge, and descend along the anterior spinal cord. As the anterior spinal artery proceeds inferiorly, it receives branches originating mostly from the aorta. The largest aortic branch is the artery of Adamkiewicz.
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Another system divides the aorta with respect to its course and the direction of blood flow. In this system, the aorta starts as the ascending aorta, travels superiorly from the heart, and then makes a hairpin turn known as the aortic arch. Following the aortic arch, the aorta then travels inferiorly as the descending aorta. The descending aorta has two parts.
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The submental space is a fascial space of the head and neck (sometimes also termed fascial spaces or tissue spaces). It is a potential space located between the mylohyoid muscle superiorly, the platysma muscle inferiorly, under the chin in the midline. The space coincides with the anatomic region termed the submental triangle, part of the anterior triangle of the neck.
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The suture is very apparent, and a little canaliculated. The white aperture is ovate, narrowed at its upper part and dilated inferiorly. The outer lip is thin and is ornamented interiorly with numerous transverse striae. The smooth columella is arcuated at its base and is covered throughout its whole length with the inner lip, the base of which is a little thicker.
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Alvarez' syndrome is a medical disorder in which the abdomen becomes bloated without any obvious reason, such as intestinal gas. It may be caused when the muscles of the superior abdominal wall contract and push the contents of the abdomen inferiorly and anteriorly. It may be a psychogenic disorder. It was discovered by and named for Walter C. Alvarez in the late 1940s.
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Umbrina ronchus has a rather elongate and moderately deep body. The small mouth is positioned inferiorly and contains the villiform teeth which are typical of the genus Umbrina and it has a short stiff barbell on its chin which has a pore on its tip. The tail is usually truncate but may be slightly emarginate. Its scales are mainly ctenoid.
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Inferior horn shown in red. The inferior horn of the lateral ventricle, or temporal horn, is the largest of the horns. It impinges on the temporal lobe in a lateral and anterior direction, initially inferiorly, until it comes within 2.5 cm. of the lobe's apex; its direction is fairly well indicated on the brain surface by the superior temporal sulcus.
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The body whorl contains about 15 spiral lirae, but only the upper three are nodulose. The ribs on the body whorl are terminated inferiorly by the spiral lirations around the cauda, which are rather thicker than those on the rest of the shell. The oval aperture measures 10/23 of the total length of the shell. The short siphonal canal is recurved and inclined to the right.
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The cuneus (Latin for "wedge"; plural, cunei) is a smaller lobe in the occipital lobe of the brain. The cuneus is bounded anteriorly by the parieto- occipital sulcus, inferiorly by the calcarine sulcus. The cuneus (Brodmann area 17) receives visual information from the same-sided superior quadrantic retina (corresponding to contralateral inferior visual field). It is most known for its involvement in basic visual processing.
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The aperture is large, oval, dilated, strongly emarginated inferiorly, and without siphonal canal. The outer lip is bordered by the last rib. The columella is smooth, simple, nearly straight and pointed at the base. The animal has a flattened head, which supports a pair of pretty long, thick, and conical tentacles, with a small protuberance at their base, internally, where the eyes are situated.
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The two apical whorls are smooth, convex, rather large. The rest is considerably excavated above and rather bulgingly convex inferiorly and obliquely ribbed. There are 9 ribs on the penultimate whorl, subobsolete in the concavity at the upper part of the whorl, and again nodulous at the suture. The body whorl shows a transverse series of white dots on the ribs a little below the middle.
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The genitofemoral nerve is formed in the midsection of the psoas muscle by the union of branches from the anterior rami of L1 and L2 nerve roots. The nerve then courses inferiorly within the psoas muscle and finally "pierces" the muscle and emerges on the anterior surface of the psoas distally. The nerve then traverses the retroperitoneum, descending over the anterior surface of the psoas.
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Inferiorly, the pyramidalis attaches to the pelvis in two places: the pubic symphysis and pubic crest, arising by tendinous fibers from the anterior part of the pubis and the anterior pubic ligament. Superiorly, the fleshy portion of the pyramidalis passes upward, diminishing in size as it ascends, and ends by a pointed extremity which is inserted into the linea alba, midway between the umbilicus and pubis.
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The hip joint, is a ball-and-socket joint. The femur connects at the acetabulum of the pelvis and projects laterally before angling medially and inferiorly to form the knee. Although this joint has three degrees of freedom, it is still stable due to the interaction of ligaments and cartilage. The labrum lines the circumference of the acetabulum to provide stability and shock absorption.
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The semilunar hiatus or hiatus semilunaris, is a crescent-shaped groove in the lateral wall of the nasal cavity just inferior to the ethmoid bulla. It is the location of the openings for maxillary sinus. It is bounded inferiorly and anteriorly by the sharp concave margin of the uncinate process of the ethmoid bone, superiorly by the ethmoid bulla, and posteriorly by the middle nasal concha.
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The conjoint tendon serves to protect what would otherwise be a weak point in the abdominal wall. A weakening of the conjoint tendon can precipitate a direct inguinal hernia.Relevant Anatomy at University of Connecticut Health Center. Retrieved Jan 2013 A direct inguinal hernia will protrude through Hesselbach's triangle, whose borders are the rectus abdominis (medially), inferior epigastric artery and vein (superolaterally), and the inguinal ligament (inferiorly).
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The suboccipital venous plexus drains deoxygenated blood from the back of the head. It communicates with the external vertebral venous plexuses. The external vertebral venous plexuses travel inferiorly from this suboccipital region to drain into the brachiocephalic vein. The occipital vein joins in the formation of the plexus deep to the musculature of the back and from here drains into the external jugular vein.
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Previously, it was considered a redundant, evolutionary remnant, but is now considered integral to shoulder stability. Most agree that the proximal tendon of the long head of the biceps brachii muscle becomes fibrocartilaginous prior to attaching to the superior aspect of the glenoid. The long head of the triceps brachii inserts inferiorly, similarly. Together, all of those cartilaginous extensions are termed the 'glenoid labrum'.
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Tail round, tapering, covered with uniform small, flat scales and rows of 4—6 keeled, trihedral tubercles at the base. Limbs elongate; digits strong, slightly depressed at the base, which has enlarged transverse plates inferiorly, compressed in the distal part. Light brown above, with spots of dark brown along the back, sometimes forming cross bands. Head with irregular dark markings; a dark temporal streak.
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Techniques involving phase accumulation (known as phase contrast angiography) can also be used to generate flow velocity maps easily and accurately. Magnetic resonance venography (MRV) is a similar procedure that is used to image veins. In this method, the tissue is now excited inferiorly, while the signal is gathered in the plane immediately superior to the excitation plane—thus imaging the venous blood that recently moved from the excited plane.
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Subglottal pressure builds and air flow forces the folds apart, inferiorly to superiorly. If the volume of airflow is constant, the velocity of the flow will increase at the area of constriction and cause a decrease in pressure below once distributed. This negative pressure will pull the initially blow open folds back together again. The cycle repeats until the vocal folds are abducted to inhibit phonation or to take a breath.
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An abscess in the psoas muscle of the abdomen may be caused by lumbar tuberculosis. Owing to the proximal attachments of the iliopsoas, such an abscess may drain inferiorly into the upper medial thigh and present as a swelling in the region. The sheath of the muscle arises from the lumbar vertebrae and the intervertebral discs between the vertebrae. The disc is more susceptible to infection, from tuberculosis and Salmonella discitis.
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The zygomaticomaxillary complex fracture, also known as a quadripod fracture, quadramalar fracture, and formerly referred to as a tripod fracture or trimalar fracture, has four components: the lateral orbital wall (at either the zygomaticofrontal suture superiorly along the wall or zygomaticosphenoid suture inferiorly), separation of the maxilla and zygoma along the anterior maxilla (near the zygomaticomaxillary suture), the zygomatic arch, and the orbital floor near the infraorbital canal.
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During inspiration the diaphragm contracts causing the central tendon to be drawn inferiorly which partially flattens the domes bilaterally. The result is an increase in the thoracic volume and a reduction in intra-thoracic pressure. This reduction, allows air to enters the lungs enhancing the venous return. During inspiration the central tendon retains its shape due to its tendinous nature and prevents constriction of the inferior vena cava.
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This space is in the posterior wall of the axilla. It is a quadrangular space bounded laterally by surgical neck of the humerus, medially by long head of triceps brachii and inferiorly by teres major. It is bounded superiorly by subscapularis in front, capsule of the shoulder joint in the middle, and behind by teres minor. The axillary nerve and posterior humeral circumflex artery and vein pass through this space.
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The hypogastric nerve begins where the superior hypogastric plexus splits into a right and left plexus. Each of these divisions is considered a hypogastric nerve. The hypogastric nerve continues inferiorly on its corresponding side of the body, where it descends into the pelvis to form the inferior hypogastric plexus. Contents of the right and left hypogastric nerves include pre- and post- ganglionic sympathetic fibers from vertebral levels of T10-L2.
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The presacral fascia lines the anterior aspect of the sacrum, enclosing the sacral vessels and nerves. It continues anteriorly as the pelvic parietal fascia, covering the entire pelvic cavity. The presacral fascia is limited postero-inferiorly, as it fuses with the mesorectal fascia, lying above the levator ani muscle, at the level of the anorectal junction. These two fascias have been erroneously confused, though they are in fact, separate anatomical entities.
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Traube's (semilunar) space is an anatomic space of some clinical importance. It is a crescent-shaped space, encompassed by the lower edge of the left lung, the anterior border of the spleen, the left costal margin and the inferior margin of the left lobe of the liver. Thus, its surface markings are respectively the left sixth rib superiorly, the left mid axillary line laterally, and the left costal margin inferiorly.
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During head trauma, it acts as a fulcrum following the downward displacement of the brainstem. This can cause injury to the pupillomotor fibres of the oculomotor nerve, consequently leading to internal ophthalmoplegia The petroclinoid ligament attaches across the notch at the petrosphenoid junction. This forms a foramen, and within this lies the abducens nerve. The abducens nerve travels inferiorly to the petroclinoid ligament Ossification The petroclinoid ligament could calcify.
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Medially, the anterior layer attaches to the vertical ridges on the anterior surface of the lumbar transverse processes, laterally it blends with the middle layer at the lateral border of the quadratus lumborum and superiorly, it forms the lateral arcuate ligament, extending from the tip of the first lumbar transverse process to the 12th rib and inferiorly, it attaches to the inner lip of the iliac crest and iliolumbar ligament.
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The detectors measure the change and convert it into thickness units that are graphically displayed. The GDx measure modulation around an ellipse just outside the optics disc and ratios of the thickest points either superiorly or inferiorly to the temporal or nasal regions. The field of view is 15 degree and imaging should be performed through undilated pupil. The polarized laser scans the fundus and building a monochromatic image.
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There are two coronary sulci in the heart including left and right coronary sulci. The left coronary sulcus originates posterior to the pulmonary trunk, and travels inferiorly separating the left atrium and left ventricle. The location of the left coronary sulcus is marked by the circumflex branch of left coronary artery and coronary sinus. Similarly, the right coronary sulcus begins anteriorly and superiorly on the sternocostal surface of the heart.
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The dorsal nasal artery is a terminal branch of the ophthalmic artery in the superomedial orbit. It passes anteriorly to exit the orbit between the trochlea superiorly and the medial palpebral ligament inferiorly. First it gives a branch to the lacrimal sac. Then it bifurcates into a branch that anastomoses with the terminal part of the facial artery and a branch that travels along the dorsum of the nose.
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When the mouth is closed the meniscus is bordered medially and superiorly by the glenoid fossa of the petrous portion of the temporal bone. When the mouth is opened maximally, the meniscus is distracted anteriorly and inferiorly along the slope of the inferior portion of the temporal bone towards the tubercle, or articular eminence, in order to remain interposed between the condyle and the temporal bone in all jaw positions.
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The two halves of the cartilage that make out the outer surfaces extend obliquely to cover the sides of the trachea. The posterior edge of each half articulates with the cricoid cartilage inferiorly at a joint called the cricothyroid joint. The most posterior part of the cartilage also has two projections upwards and downwards. The upper projection is called the superior horn (), and the lower is called the inferior horn.
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The middle colic artery is a branch of the superior mesenteric artery that mostly supplies the transverse colon. It arises just below the pancreas. It passes inferiorly and anteriorly between the layers of the transverse mesocolon, and divides into left and right branches. The right branch anastomoses with the right colic artery, and the left anastomoses with the left colic artery, a branch of the inferior mesenteric artery.
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From 1886 until his death in 1906, he was a professor of surgery at the University of Würzburg. Schönborn is remembered for his surgical work involving velopharyngeal insufficiency (VPI), commonly referred to as cleft palate. In 1875, he described the first true pharyngeal flap surgery, an inferiorly based flap surgery for VPI. He would perform several of these operations in the following years, and in 1886 switched to a superiorly based flap operation.
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The supraspinatus muscle performs abduction of the arm, and pulls the head of the humerus medially towards the glenoid cavity. It independently prevents the head of the humerus to slip inferiorly. The supraspinatus works in cooperation with the deltoid muscle to perform abduction, including when the arm is in adducted position. Beyond 15 degrees the deltoid muscle becomes increasingly more effective at abducting the arm and becomes the main propagator of this action.
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Its origin is on at least the third uppermost vertebrae, from where it courses inferiorly and laterally, lateral to the scalene and levator scapulae muscles but medial to the sternocleidomastoid muscle. Passing posteriorly to the latter muscle, it is inserted either to the middle of the clavicle or, more frequently, to the lateral third of the clavicle. It might also blend with the trapezius before its insertion. It has been reported to originate on the sixth cervical vertebra.
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The fauces, isthmus of fauces, or the oropharyngeal isthmus, is the opening at the back of the mouth into the throat. It is a narrow passage between the pharynx and the base of the tongue. The fauces is a part of the oropharynx directly behind the oral cavity as a subdivision, bounded superiorly by the soft palate, laterally by the palatoglossal and palatopharyngeal arches, and inferiorly by the tongue. The arches form the pillars of the fauces.
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The pharyngeal raphe is a raphe that serves as the origin and insertion for several of the pharyngeal constrictors (thyropharyngeal part of the inferior pharyngeal constrictor muscle, middle pharyngeal constrictor muscle, superior pharyngeal constrictor muscle). Two sides of the pharyngeal wall are joined together posteriorly in the midline by the raphe. Its superior part is attached to the pharyngeal tubercle; it extends inferiorly to the level of vertebra C6 where it blends with the posterior wall of the esophagus.
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The styloglossus, the shortest and smallest of the three styloid muscles, arises from the anterior and lateral surfaces of the styloid process near its apex, and from the stylomandibular ligament. Passing inferiorly and anteriorly between the internal and external carotid arteries, it divides upon the side of the tongue near its dorsal surface, blending with the fibers of the longitudinalis inferior in front of the hyoglossus; the other, oblique, overlaps the Hyoglossus and decussates with its fibers.
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When the patient inspires, the spleen moves inferiorly along the posterolateral abdominal wall. If the spleen is enlarged enough that the inferior pole reaches the eighth or ninth intercostal space, a dull percussion note will be appreciated, indicating splenomegaly. Some limitations, however, were also reported by Castell in his original paper. First the presence of gross splenomegaly or profuse fluid in the stomach or colon may lead to the absence of a resonant percussion note on full expiration.
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The paralyzed vocal cord may rest on a different plane than the opposite vocal cord. This results in a vertical gap between the two vocal cords that cannot be resolved using vocal cord injection or medialization thryoplasty. The suture placed in the arytenoid adduction procedure mimics the action of the lateral cricoarytenoid muscle and pulls the vocal process of the arytenoid cartilage medially and inferiorly. Thus arytenoid adduction can correct the vertical position of an elevated vocal cord.
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This nerve can cause an electric shock-like sensation by striking the medial epicondyle of the humerus from posteriorly, or inferiorly with the elbow flexed. The ulnar nerve is trapped between the bone and the overlying skin at this point. This is commonly referred to as bumping one's "funny bone". This name is thought to be a pun, based on the sound resemblance between the name of the bone of the upper arm, the "humerus", and the word "humorous".
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Inferior epigastric origin of the obturator artery, a normal variant. (A) shows a course abutting the external iliac vein, clear of the femoral ring. (B) shows the corona mortis variant, where artery courses within the lacunar ligament before diving through fascia inferiorly. The obturator artery sometimes arises from the main stem or from the posterior trunk of the internal iliac artery, or it may arise from the superior gluteal artery; occasionally it arises from the external iliac.
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A second approximately 90° rotation of the stomach, this time in the frontal plane, moves structures inferior if they were originally to the left of the stomach, and superior if they were originally to the stomach's right. Consequently, the blind-ended sac (also called the lesser sac) formed by the dorsal mesentery is brought inferiorly, where it assumes its final position as the greater omentum. It grows to the point that it covers the majority of the small and large intestine.
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Although initial evaluation is typically by physical exam and endoscopy, follow up with CT and MRI usually is needed if surgical intervention is planned. Bony anatomy around the space includes the skull base superiorly, and the greater cornu (or greater horns) of the hyoid bone the apex, inferiorly. The superior aspect is the base of skull, namely the sphenoid and temporal bones. This area includes the jugular and hypoglossal canal and the foramen lacerum (through which the internal carotid artery passes superiorly across).
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The posterior cingulate cortex lies behind the anterior cingulate cortex, forming a part of the posteromedial cortex, along with the retrosplenial cortex (Brodmann areas 29 and 30) and precuneus (located posterior and superior to the PCC). The PCC, together with the retrosplenial cortex, forms the retrosplenial gyrus. The posterior cingulate cortex is bordered by the following brain regions: the marginal ramus of the cingulate sulcus (superiorly), the corpus callosum (inferiorly), the parieto-occipital sulcus (posteriorly), and Brodmann area 24 (anteriorly).
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These muscles are grouped as the suprahyoid and infrahyoid muscles depending if they are located superiorly or inferiorly to the hyoid bone. The suprahyoid muscles (stylohyoid, digastric, mylohyoid, geniohyoid) elevate the hyoid bone, while the infrahyoid muscles (omohyoid, sternohyoid, thyrohyoid, sternothyroid) depress it. Acting synchronously, both groups facilitate speech and swallowing. Posterior triangle is bordered by the posterior border of the sternocleidomastoid muscle, anterior border of the trapezius muscle and the superior edge of the middle third of the clavicle.
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The porta hepatis runs in the hepatoduodenal ligament. When the patient is supine, and the liver observed inferiorly (as in a surgeon's perspective), the important structures demarcating its inferior aspect can be represented by a hepatic "H" figure. The right vertical limb of the "H" defines the left and right functional lobes, while the left vertical limb of the "H" defines the right and left anatomical lobes. The horizontal line between the vertical limbs of the "H" represents the porta hepatis.
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Those from the lowest ribs pass nearly vertically downward, and are inserted into the anterior half of the outer lip of the iliac crest; the middle and upper fibers, directed downward (inferiorly) and forward (anteriorly), become aponeurotic at approximately the midclavicular line and form the anterior layer of the rectus sheath. This aponeurosis formed from fibres from either side of the external oblique decussates at the linea alba. The aponeurosis of the external oblique muscle forms the inguinal ligament. The muscle also contributes to the inguinal canal.
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In 1679, the church and convent of the Capuchins was erected upon the ruins of the former Convent of the Celestine Order.Riccia nella storia e nel folk-lore, by Berengario G. Amorosa, page 155-156. The austere stone facade, rusticated inferiorly, has bronze doors; the lunettes above have a relief depicting the Immaculate Conception and Jesus by the sculptor Ettore Marinelli. On the roof of the main entrance is a much restored fresco of St Francis of Assisi receiving the Stigmata (1696) by an unknown painter.
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The apex beat (lat. ictus cordis), also called the apical impulse, is the pulse felt at the point of maximum impulse (PMI), which is the point on the precordium farthest outwards (laterally) and downwards (inferiorly) from the sternum at which the cardiac impulse can be felt. The cardiac impulse is the vibration resulting from the heart rotating, moving forward, and striking against the chest wall during systole. The PMI is not the apex of the heart but is on the precordium not far from it.
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The most prevalent cause of Ludwig's angina is odontogenic, accounting for approximately 75% to 90% of cases. Infections of the lower second and third molars are usually implicated due to their roots extending inferiorly below the mylohyoid muscle. Periapical abscesses of these teeth also result in lingual cortical penetration, leading to submandibular infection. However, oral ulcerations, infections of oral malignancy, mandible fracture, bilateral sialolithiasis-related submandibular gland infection, and penetrating injuries of the mouth floor have also been reported as potential causes of Ludwig's angina.
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Evidence from subcortical small infarcts suggests that motor fibers are somatotopically arranged in the human corona radiata. Following subtotal brain damage, localization of the corticofugal projection in the corona radiata and internal capsule can assist in evaluating a patient's residual motor capacity and predicting their potential for functional restitution. Data suggests that the corona radiata and superior capsular lesions may correlate with more favorable levels of functional recovery. Lesions seated inferiorly are likely to correlate with poorer levels of recovery regarding upper limb movement.
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The human skull is balanced on the vertebral column: The foramen magnum is located inferiorly under the skull, which puts much of the weight of the head behind the spine. Furthermore, the flat human face helps to maintain balance on the occipital condyles. Because of this, the erect position of the head is possible without the prominent supraorbital ridges and the strong muscular attachments found in, for example, apes. As a result, in humans the muscles of the forehead (the occipitofrontalis) are only used for facial expressions.
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Similar procedures to flow effect based MRA can be used to image veins. For instance, Magnetic resonance venography (MRV) is achieved by exciting a plane inferiorly while signal is gathered in the plane immediately superior to the excitation plane, and thus imaging the venous blood which has recently moved from the excited plane. Differences in tissue signals, can also be used for MRA. This method is based on the different signal properties of blood compared to other tissues in the body, independent of MR flow effects.
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The deep temporal space is separated from the pterygomandibular space by the lateral pterygoid muscle inferiorly and from the superficial temporal space by the temporalis muscle laterally. The deep temporal space and the superficial temporal space together make up the temporal spaces. The four compartents of the right masticator space. A Temporalis muscle, B Masseter muscle, C Lateral pterygoid muscle, D Medial ptaerygoid muscle, E Superficial temporal space, F Deep temporal space, G Submasseteric space, H Pterygomandibular space, I Approximate location of infratemporal space.
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The infratemporal space is the inferior portion of the deep temporal space, which is one of the four compartments of the masticator space, along with the pterygomandibular space, the submasseteric space and the superficial temporal space. The deep temporal space is separated from the pterygomandibular space by the lateral pterygoid muscle inferiorly and from the superficial temporal space by the temporalis muscle laterally. The deep temporal space and the superficial temporal space together make up the temporal spaces. The four compartents of the right masticator space.
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The sigmoid sinus is a dural venous sinus situated within the dura mater. The sigmoid sinus receives blood from the transverse sinuses, which track the posterior wall of the cranial cavity, travels inferiorly along the parietal bone, temporal bone and occipital bone, and converges with the inferior petrosal sinuses to form the internal jugular vein. Each sigmoid sinus begins beneath the temporal bone and follows a tortuous course to the jugular foramen, at which point the sinus becomes continuous with the internal jugular vein.
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Illustrated Dental Embryology, Histology, and Anatomy, Bath-Balogh and Fehrenbach, Elsevier, 2011, page 135 The buccinator acts as a valve that prevents air forcing into the duct, which would cause pneumoparotitis. Running along with the duct superiorly is the transverse facial artery and upper buccal nerve; running along with the duct inferiorly is the lower buccal nerve. The exit of the parotid ducts can be felt as small bumps (Papillae) on both sides of the mouth, and are usually positioned next to the maxillary second molars.
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272 Central muscle group: The four lumbricals arise on the medial side of the tendons of flexor digitorum longus and are inserted on the medial margins of the proximal phalanges. The quadratus plantae originates with two slips from the lateral and medial margins of the calcaneus and inserts into the lateral margin of the flexor digitorum tendon. It is also known as the flexor accessorius. The flexor digitorum brevis arises inferiorly on the calcaneus and its three tendons are inserted into the middle phalanges of digits two to four (sometimes also the fifth digit).
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The temporal fascia covers the temporalis muscle. It is a strong, fibrous investment, covered, laterally, by the auricularis anterior and superior, by the galea aponeurotica, and by part of the orbicularis oculi. The superficial temporal vessels and the auriculotemporal nerve cross it from below upward. Superiorly, it is a single layer, attached to the entire extent of the superior temporal line; but inferiorly, where it is fixed to the zygomatic arch, it consists of two layers, one of which is inserted into the lateral, and the other into the medial border of the arch.
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Koch's triangle, named after the German pathologist and cardiologist Walter Karl Koch, is an anatomical area located in the superficial paraseptal endocardium of the right atrium, which its boundaries are the coronary sinus orifice, tendon of Todaro, and septal leaflet of the right atrioventricular valve. It is anatomically significant because the atrioventricular node is located at the apex of the triangle. Also the elements anatomically near to it are the membranous septum and the Eustachian ridge. This triangle ends at the site of the coronary sinus orifice inferiorly and, continuous with the sub- Eustachian pouch.
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Inferiorly, a few fibres attached to the neck of the radius support a fold of the synovial membrane without interfering with the movements at the joint. The fibrocartilage on the upper part of the ligament is continuous with the hyaline cartilage of the radial notch. At the posterior attachment the ligament widens to reach above and below the radial notch. A thickened band which extends from the inferior border of the annular ligament below the radial notch to the neck of the radius is known as the quadrate ligament.
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The dorsal radiocarpal ligament (posterior ligament) is less thick and strong than its volar counterpart, and has a proximal attachment to the posterior border of the distal radius. Its fibers run medially and inferiorly to form a distal attachment at the dorsal surfaces of the scaphoid (navicular bone of the hand), lunate, and triquetral. The fibres of the dorsal radiocarpal ligament blend with those of the dorsal intercarpal ligament. It is in relation, behind, with the Extensor tendons of the fingers; in front, it is blended with the articular disk.
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The canine space (also termed the infra-orbital space), is a fascial space of the head and neck (sometimes also termed fascial spaces or tissue spaces). It is a thin potential space on the face, and is paired on either side. It is located between the levator anguli oris muscle inferiorly and the levator labii superioris muscle superiorly. The term is derived from the fact that the space is in the region of the canine fossa, and that infections originating from the maxillary canine tooth may spread to involve the space.
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Petit's hernia is a hernia that protrudes through the lumbar triangle. This triangle lies in the posterolateral abdominal wall and is bounded anteriorly by the free margin of external oblique muscle, posteriorly by the latissimus dorsi and inferiorly by the iliac crest. The neck (the spot where the hernia protrudes into the opening) is large, and therefore this hernia has a lower risk of strangulating than some other hernias. Petit's hernia occurs more often in males than in females and more often on the left side than on the right.
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The orbital part of inferior frontal gyrus also known as the pars orbitalis is the orbital part of the inferior frontal gyrus. In humans, this region is bordered by the triangular part of the inferior frontal gyrus (pars triangularis) and, surrounding the anterior horizontal limb of the lateral sulcus, a portion of the opercular part of inferior frontal gyrus (pars opercularis). Bounded caudally by the anterior ascending limb of the lateral sulcus, it borders on the insula in the depth of the lateral sulcus. It is bordered anteriorly/inferiorly by the lateral orbital sulcus.
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The circumflex scapular artery (scapular circumflex artery, dorsalis scapulae artery) is a branch of the subscapular artery and part of the scapular anastomoses. It curves around the axillary border of the scapula, traveling through the anatomical "Triangular space" made up of the Teres minor superiorly, the Teres major inferiorly, and the long head of the Triceps laterally. It enters the infraspinatous fossa under cover of the Teres minor, and anastomoses with the transverse scapular artery (suprascapular) and the descending branch of the transverse cervical (a.k.a. dorsal scapular artery).
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In Week Three, they were without the services of starting quarterback Jim McMahon at Green Bay, reserve quarterback Bob Avellini took the reins. Chicago's offense performed inferiorly but still managed a 9–7 victory. This contest marked the first meeting between Mike Ditka and Packers head coach Forrest Gregg. It would be a rivalry that would go down in history as arguably the dirtiest era in Chicago-Green Bay football. In Week Four, the Bears' lack of offensive power was evident as they lost to the Seattle Seahawks 38–9.
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The rectus abdominis muscle, also known as the "abdominal muscle", is a paired muscle running vertically on each side of the anterior wall of the human abdomen, as well as that of some other mammals. There are two parallel muscles, separated by a midline band of connective tissue called the linea alba. It extends from the pubic symphysis, pubic crest and pubic tubercle inferiorly, to the xiphoid process and costal cartilages of ribs V to VII superiorly.Gray's Anatomy for students, 2nd edition, Page:176 The proximal attachments are the pubic crest and the pubic symphysis.
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The upper portion of the spine gives origin to the straight head of the rectus femoris muscle, while a teardrop-shaped lower portion gives origin to the iliofemoral ligament of the hip joint and borders the rim of the acetabulum. Antero-medially and inferiorly to the AIIS is the iliopsoas groove, the passage for the iliopsoas muscle as it passes down to the lesser trochanter of the femur. A vague line, the inferior gluteal line, might run from the AIIS to the greater sciatic notch which delineates the inferior extent of the gluteus minimus origin. The AIIS is formed from a separate apophysis.
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The roof of each nasal cavity is formed in its upper third to one half by the nasal bone and more inferiorly by the junctions of the upper lateral cartilage and nasal septum. Connective tissue and skin cover the bony and cartilaginous components of the nasal dorsum. The floor of the nasal cavities, which also form the roof of the mouth, is made up by the bones of the hard palate: the horizontal plate of the palatine bone posteriorly and the palatine process of the maxilla anteriorly. The most anterior part of the nasal cavity is the nasal vestibule.
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The presence of the ligament in the greater sciatic notch creates an opening (foramen), the greater sciatic foramen, and also converts the lesser sciatic notch into the lesser sciatic foramen.Platzer (2004), p 188 The greater sciatic foramen lies above the ligament, and the lesser sciatic foramen lies below it. The pudendal vessels and nerve pass behind the sacrospinous ligament directly medially and inferiorly to the ischial spine. The inferior gluteal artery, from a branch of the internal iliac artery, pass behind the sciatic nerve and the sacrospinous ligament and is left uncovered in a small opening above the top of the sacrospinous ligament.
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The talus bone or ankle bone is connected superiorly to the two bones of the lower leg, the tibia and fibula, to form the ankle joint or talocrural joint; inferiorly, at the subtalar joint, to the calcaneus or heel bone. Together, the talus and calcaneus form the hindfoot.Podiatry Channel, Anatomy of the foot and ankle The five irregular bones of the midfoot—the cuboid, navicular, and three cuneiform bones—form the arches of the foot which serves as a shock absorber. The midfoot is connected to the hind- and forefoot by muscles and the plantar fascia.
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The venous drainage of the cerebrum can be separated into two subdivisions: superficial and deep. The superficial system is composed of dural venous sinuses, which have walls composed of dura mater as opposed to a traditional vein. The dural sinuses are therefore located on the surface of the cerebrum. The most prominent of these sinuses is the superior sagittal sinus which flows in the sagittal plane under the midline of the cerebral vault, posteriorly and inferiorly to the confluence of sinuses, where the superficial drainage joins with the sinus that primarily drains the deep venous system.
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The optic recess - marks the inferior end of the lamina terminalis, with the optic chiasm forming the immediately adjacent floor. The portion of the floor immediately posterior of the optic chiasm distends inferiorly, and slightly anteriorly, to form a funnel (the infundibulum); the recess leading to the funnel is known as the infundibular recess. The border of the funnel is the tuber cinereum, which constitutes a bundle of nerve fibres from the hypothalamus. The funnel ends in the posterior lobe of the pituitary gland, which is thus neurally connected to the hypothalamus via the tuber cinereum.
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In human anatomy, Prussak's Space is the small middle ear recess, bordered laterally by the flaccid part of Shrapnell's membrane, superiorly by the scutum (a sharp bony spur that is formed by the superior wall of the external auditory canal) and lateral malleal ligament, inferiorly by the lateral process of the malleus, and medially by the neck of the malleus. From the neck of the malleus, the anterior malleolar fold and the anterior ligament arise, demarcating Prussak's space anteriorly. Ventilation of Prussak's space is only possible posteriorly above the posterior malleus fold. It communicates with the posterior pouch of von Troltsch.
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Oral palate unit This procedure is used to correct mandible retrusion and mandibular prognathism (over and under bite). First, a horizontal cut is made on the inner side of the ramus mandibulae, extending anterally to the anterior portion of the ascending ramus. The cut is then made inferiorly on the ascending ramus to the descending ramus, extending to the lateral border of the mandible in the area between the first and second molar. At this time, a vertical cut is made extending inferior to the body of the mandible, to the inferior border of the mandible.
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Posterior horn shown in red. The posterior horn of lateral ventricle, or occipital horn, impinges into the occipital lobe in a posterior direction, initially laterally but subsequently curving medially and lilting inferiorly on the lateral side. The tapetum of the Corpus Callosum continues to form the roof, which due to the lilt is also the lateral edge. However, the posterior and anterior ends of the Corpus Callosum are characterised by tighter bundling, known as forceps (due to the resulting shape), to curve around the central sulci; the edge of these forceps form the upper part of the medial side of the posterior horn.
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Its weakest part (i.e., the part most liable to yield from overpressure) is the joint between the talus and navicular, but this portion is braced by the plantar calcaneonavicular ligament a.k.a. spring ligament, which is elastic and is thus able to quickly restore the arch to its original condition when the disturbing force is removed. The ligament is strengthened medially by blending with the deltoid ligament of the ankle joint, and is supported inferiorly by the tendon of the Tibialis posterior, which is spread out in a fanshaped insertion and prevents undue tension of the ligament or such an amount of stretching as would permanently elongate it.
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From here, two transverse sinuses bifurcate and travel laterally and inferiorly in an S-shaped curve that form the sigmoid sinuses which go on to form the two jugular veins. In the neck, the jugular veins parallel the upward course of the carotid arteries and drain blood into the superior vena cava. The deep venous drainage is primarily composed of traditional veins inside the deep structures of the brain, which join behind the midbrain to form the vein of Galen. This vein merges with the inferior sagittal sinus to form the straight sinus which then joins the superficial venous system mentioned above at the confluence of sinuses.
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The cave of septum pellucidum is bounded anteriorly by the genu of the corpus callosum, superiorly by the body of the corpus callosum, posteriorly by the anterior limb and pillars of the fornix, inferiorly by the anterior commissure and the rostrum of the corpus callosum, and laterally by the leaflets of the septum pellucidum. In prenatal development of the fetus, the laminae of the septum pellucidum separate to form a small cavity – the cave of septum pellucidum. This is an important normal structure to identify in the sonographic assessment of the fetal brain. In post-natal life, the laminae of the septum pellucidum usually fuse, which obliterates the cavum.
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Medially, the posterior layer attaches to the tips of the lumbar and sacral spines and the interspinous ligaments. To the sides it blends with the middle layer at the lateral border of the erector spinae muscle group that extends the vertebral column (bending the spine so the head moves back relative to the chest), also known as sacrospinalis in older texts and more recently as extensor spinae,[3] though this term is not in widespread use. Superiorly it continues on to the back of the thorax where it attaches to the vertebral spines and the ribs, inferiorly to the posterior quarter of the outer lip of the Iliac crest.
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Superficial to the carotid sheath lies the hypoglossal nerve and ansa cervicalis of the cervical plexus. The hypoglossal nerve crosses both the internal and external carotids, curving around the origin of the occipital artery. Within the sheath, between the artery and vein, and behind both, is the vagus nerve; behind the sheath, the sympathetic trunk. On the lateral side of the vessels, the accessory nerve runs for a short distance before it pierces the Sternocleidomastoideus; and on the medial side of the external carotid, just below the hyoid bone, the internal branch of the superior laryngeal nerve may be seen; and, still more inferiorly, the external branch of the same nerve.
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Planes such as the Frankfort horizontal plane or sella-nasion plane have their own drawbacks. The anatomical points that these planes are based on are not known to be stable over time, which may lead to variability and error in studying the cephalometric analysis of a patient. For example, the nasion-sella line which part of our anterior skull is used as a reference line for lateral cephalometric radiographs. The nasion point is known to be move anteriorly and inferiorly over time and thus can lead to an error in the values that are used to study the maxillo-mandibular relationship to the cranial base in lateral cephalometrics.
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These digitations are arranged in an oblique line which runs inferiorly and anteriorly, with the upper digitations being attached close to the cartilages of the corresponding ribs, the lowest to the apex of the cartilage of the last rib, the intermediate ones to the ribs at some distance from their cartilages. The five superior serrations increase in size from above downward, and are received between corresponding processes of the serratus anterior muscle; the three lower ones diminish in size from above downward and receive between them corresponding processes from the latissimus dorsi. From these attachments the fleshy fibers proceed in various directions. Its posterior fibers from the ribs to the iliac crest form a free posterior border.
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The interparietal articulates inferiorly with the exoccipital and the opisthotic with the tabular forming the outer portion of the occiput. Above the interparietal is articulation with the parietal and the squamosal. As part of the articulation with the quadrate is a long process lying against the squamosal externally and the opisthotic internally. The exoccipitals are small and form the lateral walls of the foramen magnum Broom, R. “On the Structure of the Mammal-Like Reptiles of the Sub-Order Gorgonopsia.” Philosophical Transactions of the Royal Society of London. Series B, Containing Papers of a Biological Character 218 (1930): 345–371.. Sauroctonus progressus Battail & Surkov describe Scylacops as the closest overall morphological relative to the Russian gorgonopsine Sauroctonus progressus.
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The axillary nerve supplies three muscles in the arm: deltoid (a muscle of the shoulder), triceps (long head) and teres minor (one of the rotator cuff muscles). The axillary nerve also carries sensory information from the shoulder joint, as well as the skin covering the inferior region of the deltoid muscle - the "regimental badge" area (which is innervated by the superior lateral cutaneous nerve branch of the axillary nerve). The posterior cord of the brachial plexus splits inferiorly to the glenohumeral joint giving rise to the axillary nerve which wraps around the surgical neck of the humerus, and the radial nerve which wraps around the humerus anteriorly and descends along its lateral border.
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The hyoid bone is important to a number of physiological functions, including breathing, swallowing and speech. It is also thought to play a key role in keeping the upper airway open during sleep, and as such, the development and treatment of obstructive sleep apnea (OSA; characterized by repetitive collapse of the upper airway during sleep). A mechanistic involvement of the hyoid bone in OSA is supported by numerous studies demonstrating that a more inferiorly positioned hyoid bone is strongly associated with the presence and severity of the disorder. Movement of the hyoid bone is also thought to be important in modifying upper airway properties, which was recently demonstrated in computer model simulations.
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It crossed the Yi River (:zh:沂河) on 12 March and attacked the Japanese left flank, engaging them from 13 to 18 March, during which the 39th Division managed to push the Japanese out of the Linyi region. Pursued by the Chinese from two directions, the Japanese were forced to withdraw, losing almost two entire battalions in the process. This engagement broke the myth of Japanese invincibility and also humiliated Japanese commander Seishirō Itagaki, even shocking the IJA headquarters. Although the Japanese 5th Division later regrouped and tried again, it had lost the element of surprise. The Japanese defeat at Linyi at the hands of the inferiorly trained and equipped Chinese regional units set the scene for the eventual battle at Tai’erzhuang .
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The horn lilts inferiorly towards its lateral edge. As a continuation of the interior side of the ventricular curve, the floor of the body of the ventricle becomes the roof of the inferior horn, hence the tail of the caudate nucleus forms the lateral edge of the inferior horn's roof, until, at the extremity of the ventricle, the caudate nucleus becomes the amygdala. The stria terminalis forms the remainder of the roof, which is much narrower than at the body - the choroid plexus moves to the medial wall. The tapetum for the temporal lobe comprises the lateral boundary of the inferior horn, on its way to join the main tapetum above the body of the ventricle (passing over the Caudate Nucleus as it does so).
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Salvelinus inframundus has the following characteristics which in combination make this taxon different from other "Arctic charr" in Great Britain. It has a relatively shallow body which is less than a fifth of its body length, it has an inferiorly positioned mouth, the pectoral fins are 67–88% the length of its head and there are 8–9 10 soft rays in the dorsal fin with 8–9 soft rays in the anal fin. It has moderately large teeth, 9–11 branchiostegals, 13–14 gill rakers, 188–200 lateral scales and 63–64 vertebrae. Other distinguishing features cited include a blunt snout; steel-grey colour on the sides with a white to pinkish or bright orange belly; there are numerous whitish spots along the flanks, mostly on the upper half of body.
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Lateral ventricles and horns The lateral ventricles connected to the third ventricle by the interventricular foramina Each lateral ventricle takes the form of an elongated curve, with an additional anterior-facing continuation emerging inferiorly from a point near the posterior end of the curve; the junction is known as the trigone of the lateral ventricle. The centre of the superior curve is referred to as the body, while the three remaining portions are known as horns (cornua in Latin); they are usually referred to by their position relative to the body (anterior, posterior, or inferior), or sometimes by the lobe of the cerebral cortex into which they extend. Though somewhat flat, the lateral ventricles have a vaguely triangular cross-section. Ependyma, which are neuroepithelial cells, line the ventricular system including the lateral ventricles.
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The seven bones that form the orbit: yellow = Frontal bone green = Lacrimal bone brown = Ethmoid bone blue = Zygomatic bone purple = Maxillary bone aqua = Palatine bone red = Sphenoid bone teal = Nasal bone (illustrated but not part of the orbit) The bony walls of the orbital canal in humans do not derive from a single bone, but a mosaic of seven embryologically distinct structures: the zygomatic bone laterally, the sphenoid bone, with its lesser wing forming the optic canal and its greater wing forming the lateral posterior portion of the bony orbital process, the maxillary bone inferiorly and medially which, along with the lacrimal and ethmoid bones, forms the medial wall of the orbital canal. The ethmoid air cells are extremely thin, and form a structure known as the lamina papyracea, the most delicate bony structure in the skull, and one of the most commonly fractured bones in orbital trauma. The lacrimal bone also contains the nasolacrimal duct. The superior bony margin of the orbital rim, otherwise known as the orbital process, is formed by the frontal bone.
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Amersfoort (2005), p. 269 At noon a breakthrough was accomplished at the extreme north of the outpost line and the Dutch positions were then slowly rolled up from behind.Amersfoort (2005), p. 272 The outnumbered and inferiorly armed companies resisted as well as they could, but by evening, all outposts were in German hands.Amersfoort (2005), p. 275 The commander of 2nd Army Corps, Major-General Jacob Harberts, failed to react adequately. He did not realise that motorised SS troops had been involved in the attack, and thought that the outposts had been surrendered to a small probing German force through the cowardice of the defenders.Amersfoort (2005), p. 276 He ordered a night counterattack by the single reserve battalion of 4th Division.Amersfoort (2005), p. 278 This attack was abandoned; on its approach the battalion was fired upon by Dutch troops manning the main line who had not been notified of its approach, leading to much confusion, and an engineer bridge necessary to cross the Grift rivulet was not brought forward in time.
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